Ear plug



1. Ear plug

Figure 1.1 is a perspective view of an ear plug;

Figure 1.2 is a front view thereof;

Figure 1.3 is a left side view thereof;

Figure 1.4 is a right side view thereof;

Figure 1.5 is a back view thereof;

Figure 1.6 is a top view thereof; and

Figure 1.7 is a bottom view thereof.

The broken lines shown in Figures 1.1, 1.2, 1.4, and 1.5 illustrate portions of the ear plug that form no part of the claimed design. 

CLAIM The ornamental design for an ear plug, as shown and described. 